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• W2895812270 abstract "Purpose To develop an electrical property tomography reconstruction method that achieves improvements over standard method by redesigning the Laplacian kernel. Theory and Methods A decomposition property of the governing PET equation shows the possibility of redesigning the Laplacian kernel for conductivity reconstruction. Hence, the discrete Laplacian operator used for electrical property tomography reconstruction is redesigned to have a Gaussian‐like envelope, which enables manipulation of the spatial and spectral response. The characteristics of the proposed kernel are investigated through numerical simulations and in vivo brain experiments. Results The proposed method reduces textured noise, which hampers observing features of the conductivity image. Furthermore, the proposed scheme can mitigate the propagation of local phase error such as flow‐induced phase. By doing so, the proposed method can recover feature information in conductivity (or resistivity) images. Lastly, the proposed kernel can be extended to other electrical property tomography reconstructions, improving the quality of images. Conclusion An alternative design of the Laplacian kernel for conductivity imaging has been developed to mitigate the textured noise and the propagation of local phase artifact." @default.
• W2895812270 created "2018-10-26" @default.
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• W2895812270 date "2018-10-09" @default.
• W2895812270 modified "2023-10-16" @default.
• W2895812270 title "Redesign of the Laplacian kernel for improvements in conductivity imaging using MRI" @default.
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• W2895812270 doi "https://doi.org/10.1002/mrm.27528" @default.
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